63872745 has 16 divisors (see below), whose sum is σ = 103004160. Its totient is φ = 33796224.

The previous prime is 63872729. The next prime is 63872747. The reversal of 63872745 is 54727836.

It is not a de Polignac number, because 63872745 - 2⁴ = 63872729 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63872697 and 63872706.

It is not an unprimeable number, because it can be changed into a prime (63872747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14860 + ... + 18669.

It is an arithmetic number, because the mean of its divisors is an integer number (6437760).

Almost surely, 2^63872745 is an apocalyptic number.

It is an amenable number.

63872745 is a deficient number, since it is larger than the sum of its proper divisors (39131415).

63872745 is a wasteful number, since it uses less digits than its factorization.

63872745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33664.

The product of its digits is 282240, while the sum is 42.

The square root of 63872745 is about 7992.0426049915. The cubic root of 63872745 is about 399.7347095080.

The spelling of 63872745 in words is "sixty-three million, eight hundred seventy-two thousand, seven hundred forty-five".